From: David Kastrup <dak@gnu.org>
To: emacs-devel@gnu.org
Subject: Re: Calc; Emacs has big-number support
Date: Mon, 03 Sep 2018 12:00:26 +0200 [thread overview]
Message-ID: <87va7mvr2d.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <87r2ia29wp.fsf@gmail.com> (Robert Pluim's message of "Mon, 03 Sep 2018 11:43:50 +0200")
Robert Pluim <rpluim@gmail.com> writes:
> David Kastrup <dak@gnu.org> writes:
>
>> Please describe exactly what actions triggered the bug and the
>> precise symptoms of the bug. If possible, include a backtrace by
>> doing `\[toggle-debug-on-error]', then reproducing the bug.
>>
>>
>> With big number support native to Emacs, the number support primitives
>> should no longer employ the historic large integer representation. As
>> XEmacs is essentially frozen (and has had (optional?) big number support
>> for much longer anyway), this should not be a consideration. As opposed
>> to the (never completed) Calc 2.0 project of using Emacs floats where
>> feasible, this does not require bolstering precice arithmetic with fast
>> but approximative floating point arithmetic but is a wholesale
>> replacement of precise integer arithmetic.
>>
>> As such, it should not pose new numeric and structural challenges but
>> would be "just" a case of simplifying code.
>
> Yes. I posted a proof-of-concept patch here a while back, and am
> (slowly) working on making sure the result works correctly.
Great to hear! Thanks!
--
David Kastrup
prev parent reply other threads:[~2018-09-03 10:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-03 9:11 Calc; Emacs has big-number support David Kastrup
2018-09-03 9:43 ` Robert Pluim
2018-09-03 10:00 ` David Kastrup [this message]
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